package com.guo.fristspringboot.mapper;

import com.guo.fristspringboot.entity.Book;
import org.apache.ibatis.annotations.Mapper;
import org.springframework.stereotype.Repository;

import java.util.List;

//@Mapper
//@Repository
public interface BookMapper {

    Book getById(String s_id);

    List<Book> getAll();
}
